[Eeglablist] Linear detrend

[Tom Campbell]

Min

I remember that this can be done in MATLAB, though I am not sure if EEGLAB 
has more recent functions. If you are going to detrend, then do this for 
every participant and channel. I take it that you are doing ERP, in which 
case it should be ok to just detrend the averages (it is a linear 
operation). 
-- 
best regards,
________________________________________________________________________

Dos. Ph.D. Tom Campbell                  tom.campbell at helsinki.fi
Uudenmaankatu 19-21 C 47                 +358442737472
00120 Helsinki
FINLAND                                  
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Quoting Min Bao <ustcbm at yahoo.com.cn>:

> Hi experts,
> 
> I am conducting a study on some ERP components (e.g. C1 P1 etc.) in
> Visual Evoked Potential. In some of my data, I can see a little linear
> trend which may affect the peak amplitude evaluation. Do you know whether
> doing linear trend is good or not and if it's good how to correct such a
> linear trend in EEGlab? If EEGlab does not provide any plugins to correct
> it, what algorithms and methods are you using? Is it better to do linear
> detrend on the averaged or all individual epochs?
> 
> Thank you very much!
> 
> Min Bao
> 
> University of Minnesota
> 
>        
> ---------------------------------
>  ????,??????!